How to execute queries in SQLite?

To perform a query in SQLite, you can use SQL statements to retrieve the desired data. Here is a simple example of a query operation:

SELECT * FROM table_name;

In this example, the SELECT keyword is used to specify the columns to retrieve, * indicates retrieving all columns, and after the FROM keyword comes the table name, indicating from which table the data should be retrieved.

To retrieve data from specific columns, you can specify the names of the columns in the SELECT statement, as shown below:

SELECT column1, column2 FROM table_name;

You can use the WHERE clause to add conditions to restrict the results of a query, for example:

SELECT * FROM table_name WHERE column1 = 'value';

In addition to the basic SELECT statement, you can also sort results using the ORDER BY clause, group results using the GROUP BY clause, join multiple tables together for querying using the JOIN clause, and so on.

When conducting a query, you can use either the SQLite command line tool or a SQLite client application (such as DB Browser for SQLite) to execute SQL statements. Simply input the query into the appropriate tool to view the results.